Integrating Anaerobic Digestion With Composting
The Hengelo, Netherlands plant employs a continuous plug-flow anaerobic digester integrated into a larger composting operation. The digester, supplied by Organic Waste Systems, processes one-quarter of incoming feedstock on a half-acre footprint at the facility. Photo courtesy of OWS

Which is better for managing source separated organics, anaerobic digestion or aerobic composting? “It’s not an either-or proposition,” suggest the authors.
Tom Kraemer and Scott Gamble
BioCycle November 2014, Vol. 55, No. 10, p. 32

Smooth Transition To Food Waste Composting
All food waste is unloaded in a ClearSpan fabric building to reduce storm water impacts on waste receiving and mixing operations. Among special loads of food waste processed was the 800-pound butter sculpture from the New York State Fair (inset).

Regional waste authority in New York State switches to extended aerated static piles in bunkers to manage food waste at existing yard trimmings composting facility.
Claire Siegrist
BioCycle November 2014, Vol. 55, No. 10, p. 20

Permitting Bioenergy Projects In California
CleanWorld high solids anaerobic digester in Sacramento (CA), located at a solid waste transfer station.

Panel discussion provides insights into how to successfully maneuver through California’s stringent requirements for projects such as anaerobic digestion.
Marsha Johnston
BioCycle November 2014, Vol. 55, No. 10, p. 52

Composting, Zero Waste On NYC’s Governors Island
Volunteers assist with mixing foods scraps from New York City’s Greenmarkets with an equal amount of preblended carbon amendment to create an aerated static pile. Earth Matter NY cofounder Marisa DeDominicis in on right.

Earth Matter NY, located on Governors Island in New York Harbor, operates a Compost Learning Center, training programs, zero waste initiatives and a community composting site. Part V
BioCycle October 2014, Vol. 55, No. 9, p. 35

Food Recovery In San Diego
With 14.8 percent of the San Diego region in the food insecure individuals category, increasing food donation is an integral part of the city’s organics program.

Source reduction, diverting for reuse and composting are the best combined practices for food scraps management. This article highlights food donation potential in the City of San Diego.
Ana Carvalho
BioCycle March 2013, Vol. 54, No. 3, p. 33

Next Frontier Of Organics Recycling In California
The Clean World anaerobic digester installation at the South Area Transfer Station in Sacramento is designed to process 100 tons/day of source separated organics.

To achieve its 75 percent goal, CalRecycle estimates California will need to move about
22 million more tons of organics and other recyclables from disposal to recycling annually.
Caroll Mortensen
BioCycle March 2013, Vol. 54, No. 3, p. 29